Sand bucket



Nov. 20 1923.

M. L. CROWL SAND BUCKET Filed March 2, 1922 A TTOR/VEYS Patented Nov.20, 1923.

IYIARTIN- LUTHER CRCVI'L, OF PU EBLQ'CQLORADO, 2

sk n) I BUCKET.

Application filed March- 2, 1922. SerieIL No, I5,4Q,4! 31 ToaZZw/wmitmag concern: I I

Be it known that I, M \RTIN' LUTHER CROWL, a citizen of the [UnitedStates, and a resident of Pueblo, in the countyof Pueblo and State ofColorado, haye i nvent eda new and useful Improvement in Sand Buckets,of which the following isa full, clear, and exact description. I Y

My. invention relates to improvements in sand buckets, and it consistsin the combinations, constructions, and arrangements herein describedand claimed.

'An object of my invention is to provide a device of the. characterdescribed for removing sand, rock, or other loose obstructions from thecasing of a well.

A further object of my invention is to provide a device of the characterdescribed, the .bucket blades of which are held open until the devicehas been filled and ready to be hoistedout of the casing.

A further object of myinventionis to pro-- vide a. device ofthe'character described which is extremely simple in construction,durable, and thoroughly practical for the purpose intended. I

Otherobjects and advantages will appear in the following specification,and the novel features of the invention will be particularly pointed outin the appended claims.

My invention is illustratedin the accompanying drawings, forming part ofthis ap plication, in which i Figure 1 is a side elevation, partly insection of an embodiment of my invention,

Figure 2 is aside elevation of thefupper portion of the mechanism.illustrated in Figure 1 with the central-shaft elevated, and

Figure 3 is a. side elevation of the lower portion of the mechanismshown in Figure 1' with the bucket blades closed.

In carrying out my invention, I make use of a relatively long cylinder 1of a strong sheet metal. The cylinder 1 comprises the body of the sandbucket and I shall here after refer to this portion as the bucket.

The diameter of the bucket 1 is of such,

dimension that it may be admitted to the casing of a well and issufiiciently long to hold a considerable amount of loose sand or refusefrom the well,

A pair of bucket blades 2 and 3 are hingedly mounted upon the lower endof the bucket 1 at 4. The bucket blades 2 and 3 are made of hardenedplow steel and are fashioned so that when their upper edges 5 are'drawninto close. engagement with 'the 1 lower endo of the'bucketj 1,:the arcuate., 'edges 7 or jaws of thefbl a desfwill contacuoiie another,and thus close the lower'fo'fien end 6 of the bucket. This isclearlyfshow'n' in Figure 3."

ean te m natin h an i p ide f f f p' n rt Sha t, SCi trally located I withi n the bucket- 1. "The lower end of the 's h'aft Shas pivotallybucketv blades 2 A;

mounted'tliereon a of shortlinl is fl and nected to lugs 11 andf12 ontheinner of thebucket 'blades 2 and}, respectively. When thecentralshaftfS is elev'ated,Iit-' is obvious, that because of the links '9 and'10 I I and their, connections fto the bucket"blades, the blades willassume the positioifshdwn in Figure 3 and thusclo'se fthe'bu'ck et 1. V

I The upper end 13 o 'f'tlie1 bu cl et, 1 isopen and is provided with abail 14 riveted thereto. The upper horizontalportionlo of the i bail 14khassupported on the ender surface thereof a U-shaped guide member 16'riveted to the portion '15,:by rivets 17. A downwardly I extendingpillan 18 is supported upon the under surface of the portion 15, aI1id ihas mounted .thereona steel band spring'1 9. This steel sp n ,1 i normalym t iii sngageme-nt with the central shaft-B. A vertioal bolt20isheldin closeengagementwith one side of the ceiitralishaft 8I'bymeahs of i an adj ustable locking collar 21. The bolt 20 is providedwitl i atongue "22 at its upper end, which tongue is parallel andspacedfapart from the adjacent side of the centraljshaft 8.

' A small b ail 23 is figredto thejnp' r end of ,tl Qent ld t 8 sn'id'si amean for receiving the "cable from whi'ch 'the bucket issuspended. I

From the foregoing description of the va 7 rious parts of the device,the operation thereof may be readily understood. Before lowering my sandbucket into the well, I press the central shaft 8 downwardly until thebucket blades 2 and 3 are inithe position shown in Figure 1. At thistime, the bolt 20 engagement with the spring 19, thus holding the bucketblades 2 and, 3 in an open operative position.

7 and the bucket blades 2 and 3, because they are of a hard steel, willbe unharmed in their forceful contact with the well bottom. As theblades 2 and 3 sink into the loose contents of the well bottom, thesides of the bucket 1 will encompass this loose material.

At the same time that the bucket strikes the well bottom, the weightthereof will be released from the cable supporting the cen. tral shaft8, and the momentum gathe-redby the shaft 8 in its descent in the well,will cause the shaft to move downwardly and thus release the bolt fromits engagement with the spring 19. The cable from which the bucket issuspended, is now drawn upwardly, and will cause the central shaft 8 tobe elevated, since the spring 19 is at this time in the position shownin Figure 2, and will notobstruct the movement of the shaft byengagement of the bolt 20 therewith. The

fact that the bucket 1 contains a quantity of 1 the loose rock and sandwill also tend to hold the bucket 1 down, and as the central shaft v 8is elevated, the bucket blades 2 and 3 will dill assume the positionshown in Figure 3, after which movement any further pull upon the cablewill cause the entire device to move therewith. It may be said that theweight 'of the contents of the bucket virtually holds the blades 2 and 3in close engagement with one another.

The purpose of the adjustable collar 21 is that the bolt 20 may be movedlongitudinally to adjust the position of the bucket blades 2 and 3 whenthe device is being lowered into the well.

I claim:

1. A device of the character described comprising a hollowcylindricalbody memher, a pair of bucket blades hingedly mounted on the lower endof said body member, arranged to cooperate with one another to close thelower end of said body member, a central shaft disposed in said bodymember, a pair of links connected to the lower end of said central shaftand to the inner surfaces of the bucket blades respectively, a bailcarried by said central shaft at its upper end for engagement with acable or the like,

to prevent the elevation of said shaft when said device is suspendedfrom a cable inthe manner described. 7

2. A device of the character described comprising a hollow body member,a pair of clam shell bucket blades hingedly mounted on the lower end ofsaid body member arranged to cooperate with one another to close thelower end of said body member, a central shaft disposed in said bodymember, means carried by said central shaft for engaging with a cablefor suspending said shaft therefrom, a pairoff rigid links connected tothe lower end of said shaft and to said blades, a bail disposed on theupper end of said body member, a band spring carried by said bail andnormally held out of en gagement with said central shaft, and meanscarried by said central shaft and adapted to engage said sprilng whensaid spring is moved manually toward said shaft to prevent the rotationof said shaft when said device is suspended from a cable in the mannerdescribed.

MARTIN LUTHER CROWL.

